Distinguishing Dark Matter Characterization of Contact Dark Matter for the LHC

This research investigated the possibility of characterizing and distinguishing properties of dark matter at the LHC at a center of mass energy $\sqrt{s}=13$ TeV to be compared with coming experimental data. Six of these models are of scalar dark matter and six are of fermion dark matter. This was done within the framework of contact interactions. Simulations were done in the CalcHEP package and the associated High Energy Physics Model DataBase (HEPMDB). Dark matter is invisible to our detectors, but other particles produced in association with it are not, leading to monojet or monophoton signatures. These signatures point to missing transverse momentum in the system: that carried by the dark matter. Both monojet and monophoton signatures were studied and characterized in this research The transverse momentum and pseudo-rapidity the jet or photon and the cross section of the dark matter were characterizes for the twelve different models and for four different dark matter masses. It was found that, contrary to the LHC dark matter forum, different spins and operators of dark matter are distinguishable. This work was done in collaboration with and under the supervision of members of the LHC collaboration at the LHC